How to Calculate Average

Categories math average statistics arithmetic mean

Calculating the average, or the arithmetic mean, is a fundamental concept in mathematics and statistics. It provides a way to summarize a set of numbers with a single value that represents the central point of the data. Here’s how you can calculate it:

Step-by-Step Guide

1. Sum the Values: Add all the numbers in your dataset together. For example, if your numbers are 4, 8, and 10, you would calculate 4 + 8 + 10 = 22.
2. Count the Numbers: Determine how many values are in your dataset. In this case, there are 3 numbers.
3. Divide the Sum by the Count: Finally, divide the total sum by the count of numbers. Using our example, 22 divided by 3 equals approximately 7.33.

Example Calculation

Let’s say you have the following set of numbers: 5, 10, 15, and 20. First, you add them up: 5 + 10 + 15 + 20 = 50. Next, count the numbers, which is 4. Lastly, divide the sum by the count: 50 / 4 = 12.5. Thus, the average is 12.5.

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